Real GNP, U.S., 1909-1970, annual        
 116.8  
 120.1  
 123.2  
 130.2  
 131.4  
 125.6  
 124.5  
 134.3  
 135.2  
 151.8  
 146.4  
 140.0  
 127.8  
 148.0  
 165.9  
 165.5  
 179.4  
 190.0  
 189.8  
 190.9  
 203.6  
 183.5  
 169.3  
 144.2  
 141.5  
 154.3  
 169.5  
 193.0  
 203.2  
 192.9  
 209.4  
 227.2  
 263.7  
 297.8  
 337.1  
 361.3  
 355.2  
 312.6  
 309.9  
 323.7  
 324.1  
 355.3  
 383.4  
 395.1  
 412.8  
 407.0  
 438.0  
 446.1  
 452.5  
 447.3  
 475.9  
 487.7  
 497.2  
 529.8  
 551.0  
 581.1  
 617.8  
 658.1  
 675.2  
 706.6  
 724.7  
 720.0  
